45 lines
1.2 KiB
Markdown
45 lines
1.2 KiB
Markdown
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# VAG files
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> VAG is the PlayStation single waveform data format for ADPCM-encoded data of sampled sounds, such as
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piano sounds, explosions, and music. The typical extension in DOS is “.VAG”.
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See [http://psx.arthus.net/sdk/Psy-Q/DOCS/FileFormat47.pdf](FileFormat47.pdf), p.209
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## WAV creation
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Use ffmpeg to create a 16-bit ADPCM mono WAV file - change -ar to reduce filesize (and quality)
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```bash
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$ ffmpeg -i input.mp3 -acodec pcm_s16le -ac 1 -ar 44100 output.wav
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```
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You can use Audacity to edit sound.
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## WAV to VAG convertion using WAV2VAG
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Get here : [https://github.com/ColdSauce/psxsdk/blob/master/tools/wav2vag.c](WAV2VAG)
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Change -freq according to the -ar setting above
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```bash
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$ wav2vag input.wav output.vag -sraw16 -freq=44100 (-L)
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```
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### Bug ?
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After conversion with WAV2VAG, the resulting VAG will sometimes have a pop at the very beginning and/or end of the file.
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You can check (and delete) this with PsyQ's VAGEDIT.EXE.
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You can also force the sampling frequency of an existing VAG file.
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## VAG & SPU Docs
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See
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* libformat47.pdf p.209
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* libover47.pdf, p.271
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* libref47.pdf, p.980
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* [http://psx.arthus.net/code/VAG/](http://psx.arthus.net/code/VAG)
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